MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='73a0b0e176dba66e3a7edd743f34d343',`time`=1711644340,`ip`=X'343737ef',`location`='/newreply.php?tid=281&replyto=714',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0